<template>
    <div>
        <div class="crumbs">
            <el-breadcrumb separator="/">
                <el-breadcrumb-item>
                    <i class="el-icon-lx-cascades"></i> 货物类型
                </el-breadcrumb-item>
            </el-breadcrumb>
        </div>
        <div class="container">
            <div class="handle-box">
                <el-button
                    type="primary"
                    icon="el-icon-delete"
                    class="handle-del mr10"
                    @click="delAllSelection"
                >添加货物类型</el-button>
            </div>
            <el-table
                :data="tableData"
                border
                class="table"
                ref="multipleTable"
                header-cell-class-name="table-header"
                @selection-change="handleSelectionChange"
            >
                <el-table-column type="selection" width="55" align="center"></el-table-column>
                <el-table-column prop="id" label="ID" width="55" align="center"></el-table-column>
                <el-table-column prop="gname" label="货物名称"></el-table-column>
                <el-table-column prop="type" label="设备类型"></el-table-column>
                <el-table-column prop="desc" label="描述"></el-table-column>
                <el-table-column prop="temperature" label="温度区间" align="center"></el-table-column>
                <el-table-column prop="delay_start" label="延迟开始" align="center"></el-table-column>
                <el-table-column prop="gap" label="时间间隔" align="center"></el-table-column>
                <!-- <el-table-column prop="call_police" label="报警信息" align="center"></el-table-column> -->
                <el-table-column prop="create_time" label="添加时间"></el-table-column>
                <el-table-column prop="update_time" label="更新时间"></el-table-column>
                <el-table-column label="操作" width="180" align="center">
                    <template slot-scope="scope">
                        <el-button
                            type="text"
                            icon="el-icon-edit"
                            @click="handleEdit(scope.$index, scope.row)"
                        >编辑</el-button>
                        <el-button
                            type="text"
                            icon="el-icon-delete"
                            class="red"
                            @click="handleDelete(scope.$index, scope.row)"
                        >删除</el-button>
                    </template>
                </el-table-column>
            </el-table>
            <div class="page">
                <el-pagination
                    background
                    @size-change="handleSizeChange"
                    @current-change="handleCurrentChange"
                    :current-page="paginations.page_index"
                    :page-sizes="paginations.page_sizes"
                    :page-size="paginations.page_size"
                    :layout="paginations.layout"
                    :total="paginations.total">
                </el-pagination>
            </div>
        </div>

        <!-- 编辑弹出框 -->
        <el-dialog title="编辑" :visible.sync="editVisible" width="30%">
            <el-form ref="form" :model="form" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="form.name"></el-input>
                </el-form-item>
                <el-form-item label="地址">
                    <el-input v-model="form.address"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveEdit">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
import { gethuowu } from '../../api/api';
export default {
    name: 'huowuleixing',
    data() {
        return {
            query: {
                address: '',
                name: '',
                pageIndex: 1,
                pageSize: 10
            },
            multipleSelection: [],
            delList: [],
            editVisible: false,
            pageTotal: 0,
            form: {},
            idx: -1,
            id: -1,
            tableData:[], //数据
            paginations:{
                page_index:1, //当前页
                total:0, //总数
                page_size:5, //一页显示多少
                page_sizes:[5,10,15,20], //每页显示多少条
                layout:'total, sizes, prev, pager, next, jumper'
            },
            allTableData:[],
        };
    },
    created() {
        this.getData();
    },
    methods: {
        // 获取 easy-mock 的模拟数据
        getData() {
            gethuowu().then(res => {
                this.allTableData = res;
                this.setPaginations()
            });
        },
        setPaginations(){
            this.paginations.total = this.allTableData.length; //数据的数量
            this.paginations.page_index = 1; //默认显示第一页
            this.paginations.page_size = 10; //每页显示多少数据
            
            //显示数据
            this.tableData = this.allTableData.filter((item,index) => {
                return index < this.paginations.page_size;
            })
        },
        handleSizeChange(page_size) {
            this.paginations.page_index = 1; //第一页
            this.paginations.page_size = page_size; //每页先显示多少数据
            this.tableData = this.allTableData.filter((item,index) => {
                return index < page_size
            })
        },
        handleCurrentChange(page){
                // 跳转页数
                //获取当前页
            let index = this.paginations.page_size * (page -1);
            //获取总数
            let allData = this.paginations.page_size * page;
            
            let tablist=[];
            for(let i = index;i<allData;i++) {
                if (this.allTableData[i]) {
                    tablist.push(this.allTableData[i])
                }
                this.tableData = tablist
            }
        },
        // 删除操作
        handleDelete(index, row) {
            // 二次确认删除
            this.$confirm('确定要删除吗？', '提示', {
                type: 'warning'
            })
                .then(() => {
                    this.$message.success('删除成功');
                    this.tableData.splice(index, 1);
                })
                .catch(() => {});
        },
        // 多选操作
        handleSelectionChange(val) {
            this.multipleSelection = val;
        },
        delAllSelection() {
            const length = this.multipleSelection.length;
            let str = '';
            this.delList = this.delList.concat(this.multipleSelection);
            for (let i = 0; i < length; i++) {
                str += this.multipleSelection[i].name + ' ';
            }
            this.$message.error(`删除了${str}`);
            this.multipleSelection = [];
        },
        // 编辑操作
        handleEdit(index, row) {
            this.idx = index;
            this.form = row;
            this.editVisible = true;
        },
        // 保存编辑
        saveEdit() {
            this.editVisible = false;
            this.$message.success(`修改第 ${this.idx + 1} 行成功`);
            this.$set(this.tableData, this.idx, this.form);
        },
    }
};
</script>

<style scoped>
.handle-box {
    margin-bottom: 20px;
}

.handle-select {
    width: 120px;
}

.handle-input {
    width: 300px;
    display: inline-block;
}
.table {
    width: 100%;
    font-size: 14px;
}
.red {
    color: #ff0000;
}
.mr10 {
    margin-right: 10px;
}
.table-td-thumb {
    display: block;
    margin: auto;
    width: 40px;
    height: 40px;
}
</style>
